Solutions by everydaycalculation.com
1st number: 2/15, 2nd number: 1 4/12
215 - 1612 is -65.
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Related: 4/15-16/12 2/15-32/12 2/30-16/12 2/15-16/24 6/15-16/12 2/15-48/12 2/45-16/12 2/15-16/36 10/15-16/12 2/15-80/12 2/75-16/12 2/15-16/60 14/15-16/12 2/15-16/84
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